JP2006188969A - Windmill and wind power generator incorporating this windmill - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a windmill and a wind power generator for largely increasing a speed of wind by a fixed vane by a guide vane, by arranging the guide vane and a rotary vane between guide passage members. <P>SOLUTION: This windmill 51 is formed by arranging the guide vane 53 in the rotary vane 55 installed on a support bar 54 arranged on a main shaft 56, the guide passage members 57 and 58 installed on the main shaft 56, and an orifice passage 37 between the guide passage members. The guide vane 53 of the fixed vane is formed of an outside wind collecting part 34, an inside straightening part 35, and the innermost side diffuser-shaped flow passage part 36, and largely increases a flow speed of the taken-in wind. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a wind turbine comprising a guide vane having a guide passage member having a rotor blade attached to a main shaft and introducing air into the rotor blade, and a wind power generator incorporating the wind turbine.

  In recent years, the popularization of wind power generators has been screamed in order to save energy and prevent environmental pollution. In the social situation where the energy crisis is screamed, there is nothing in Japan as rich as wind power, and there is no other energy source with less environmental pollution than wind power. Therefore, in Japan, in order to promote the use of wind energy, it is required to develop a generator that has a size that can be installed for general household use and that has little capital investment for the wind generator.

  Conventionally, wind turbine generators have been widely propeller-type in structure, but this method requires that the propeller be always facing the front of the wind. Is installed, and the propeller position is changed according to the wind direction. For example, a wind turbine generator using a permanent magnet type AC generator capable of generating a certain amount of power regardless of wind fluctuations is known. In the wind power generator, the permanent magnet type AC generator is rotationally driven by a propeller. The electric power generated by the generator is supplied to the inverter. Since the inverter is controlled by a signal having a predetermined phase difference with respect to a signal having a frequency proportional to the number of revolutions of the propeller, the inverter can output a constant power regardless of wind force fluctuation (for example, Patent Document 1). reference).

  As a wind power generator, there is known a type equipped with a cross-flow wind turbine in which the shape of a blade body is formed in a wing shape and the rotation efficiency is improved with a simple configuration. The crossflow wind turbine has a plurality of blades standing at intervals between the pair of upper and lower disk-shaped rotating plates, and each blade has a cross-sectional shape similar to that of an airplane wing. Therefore, it is shaped to generate lift in the circumferential direction of the rotating plate by receiving wind power. In the central part of the rotating plate, which is the inner end side of the blade body, a space is formed that does not block the air flow without installing anything, and the upper and lower sides of the space are closed by the rotating plate. This prevents the air flow from being disturbed inside the plate and the blades (see, for example, Patent Document 2).

A wind power generator using a crossflow wind turbine is also known. The cross-flow wind turbine in the wind power generator is intended to greatly improve the inflow efficiency of wind, and has a wind turbine body that is rotatably supported, and a casing is provided to cover the wind turbine body, The casing is provided with an inlet for guiding the wind to the windmill body, and faces the vicinity of the maximum negative pressure generation region caused by the lift generated by the flow along the outer circumference of the wind facing the inlet. , An outflow port for guiding outflow of wind passing through the windmill body is provided (see, for example, Patent Document 3).
Japanese Patent Laid-Open No. 2001-190096 (first page, FIG. 2) Japanese Unexamined Patent Publication No. 2003-120501 (first page, FIG. 1) JP 2004-11599 A (first page, FIG. 2)

  By the way, a vertical airfoil wind turbine provided in a wind power generator has a structure in which a plurality of streamlined vertical blades are attached to the tip of a radial support on a vertically standing shaft. The radial vertical blades in a wind power generator rotate when the driving force acts when the angle of attack is slightly outward. The radial vertical wing has a larger rotational driving force as the angle of attack is larger, but the power generation efficiency becomes worse when the rotation is large. However, the wind turbine generator of the above type is the most suitable windmill in the climate where the wind direction changes because the radial vertical blades rotate regardless of the wind direction.

For wind power generators, if the wind speed is low, the wind energy is not large, so the turning radius of the windmill must be increased.
The power generated by the wind power generator is expressed by the following equation.
W = (1/2) · ρ · Cp · A · V ³
However, W: Output, ρ: Air density, Cp: Windmill efficiency factor, A: Windmill rotation area, and V: Wind speed When the numerical values are applied to the above formula, the wind speed is 2 to 3 m / s. It can be seen that almost no output is generated when. That is, in the wind power generator, the wind speed is the third power, which affects the output. When the wind speed is high, a large output is obtained, and when the wind speed is low, almost no output is obtained.

  In order to solve the above problems, the object of the present invention is to collect the guide vanes along the guide passage member that spreads the incoming wind inward and increases the speed of the incoming wind inward. A wind turbine that takes in the inside of the wind section, rectifier section, and diffuser-like flow path to significantly increase the speed of the wind is provided, and the wind turbine is incorporated into a generator to generate power by greatly increasing the wind speed. The purpose is to provide a wind power generator that generates power in proportion to the contribution rate of the third power of the wind speed and greatly increases the generated power.

  The present invention relates to a vertically standing main shaft, a plurality of support bars provided on the outer periphery of the main shaft, and a streamlined rotary motion extending on a circumference fixed to the tip of the support bar. A pair of guide passage members which are attached to the main shaft and which form an open fixed passage for introducing air from the outside to the inside on the outer peripheral side, and between the guide passage members and on the outer peripheral side of the rotary blade It has a guide vane that forms a radial fixed vane that introduces air from the outside to the inside, and the guide vane has a wind-collecting portion whose outermost periphery is widened outward, and the inside of the air-collecting portion forms a parallel flow The present invention relates to a wind turbine characterized in that a rectifying section that forms a diffuser-like flow path section whose innermost circumference expands from the parallel flow is formed.

  The guide passage member extends so as to cover both end sides of the rotor blade and the guide vane, and with respect to the air introduced into the air collecting part, the rectifying part, and the diffuser-like channel part of the guide vane. A throttle passage is formed.

  The fixed vane of the guide vane is formed in a streamlined shape in which the opening of the air collecting portion gradually expands radially from the inner side toward the outer side, and the outermost periphery of the guide vane has an acute angle and a circular outer periphery. Has been.

  The guide vane is attached by being slightly twisted so that the streamline vector is along the rotation direction of the rotor blade. Further, the guide vane has a streamline located at the midpoint of the outer opening with respect to the center line connecting the axis of the rotor blade to the midpoint of the outer opening, and 5 degrees to 30 degrees with respect to the rotation direction. An obliquely twisted passage is formed.

  The present invention provides a generator including a rotating shaft rotatably supported by a housing, a rotor fixed to the rotating shaft, and a stator fixed to the housing and having a winding wound around a comb portion. , The wind turbine generator is characterized in that the main shaft of the wind turbine is attached to the rotating shaft.

  The wind power generator includes a permanent magnet member in which the rotor is spaced apart in the circumferential direction, is attached to the housing so as to be movable with respect to the stator, and magnetic flux passing through the stator is a magnetic path. A magnetic flux control ring that is controlled by increasing or decreasing the gap is provided.

  The wind power generator includes a reinforcing member capable of forming a magnetic path attached to an outer periphery of the permanent magnet member, a magnetic leakage ring made of a magnetic material that can be contacted and separated from an end of the reinforcing member, and a rotor It has contact / separation drive means for contacting and separating the magnetic leakage ring with respect to the reinforcing member in response to a predetermined rotational speed.

  As described above, this wind turbine includes a guide vane of a fixed vane and a guide passage member that is a guide vane to the guide vane on the outer periphery around which the rotor blades rotate, and the guide passage member has a wide opening area on the outside. Since the guide vane is composed of a wind collecting part, a rectifying part, and a diffuser-shaped flow path part, the wind introduced from the wind collecting part of the windmill gathers and flows, and the increased speed of the wind flows into the rectifying part in the middle part. Since the air is rectified and is narrowed more gently in the inner diffuser-shaped flow passage, the speed of the wind that has flowed in is greatly increased, and the speed of the wind that flows in from the outer periphery is increased without causing disturbance. , The accelerated wind collides with the rotor blades of the vertical blades and gives a large rotational thrust to the rotor blades. The wind that gives propulsion to the wind turbine flows to the guide vane on the opposite side, but the guide vane functions as a diffuser, and the wind is sucked out of the wind turbine, so that the wind turbine becomes a resistance to the wind. In addition, when the wind turbine speed increases, the air in the wind turbine is pushed outward by centrifugal force, so that the wind is pushed downstream of the wind, thereby greatly improving the efficiency. Also, when this windmill is installed in the wind, the guide vanes act as wind resistors outside the device, forming strong turbulence on the outside and creating a protective flow on the outside. On the opposite side, negative air pressure is formed, and the air in the windmill is sucked into that area.

Further, as described above, this wind power generator is provided with a pair of guide passage members provided on the upper and lower sides and a wind turbine having a large number of guide vanes, so that the output can be increased by the effect of increasing the wind speed of the wind turbine. This will contribute to the improvement of power generation efficiency. For example, when the wind turbine rotation area is 5 m ² and the wind speed of a 300 W wind turbine is doubled when the wind speed is 3 m / s, the power generation output is 2.4 Kw, which is eight times greater. However, in this case, the wind turbine rotation of the wind power generator is increased, and as a countermeasure against strength, when the wind-receiving area of the wind turbine is halved, a 4-fold output of 1.2 kW is obtained. As a result, the utilization rate is more than five times that of ordinary generators. One of the reasons why the spread of wind power generators in Japan is delayed is that the winds at each place are not too big, and the average wind speed is 5m / s. With a conventional wind power generator, an output of 1.4 kW can be obtained by using a normal wind turbine with the above-mentioned wind power. However, with the wind power generator according to the present invention, when the wind receiving area is 5 m ² , If the output is .1 kw and the area is halved, the output is 5.6 kw, and a very efficient one is completed.

  In addition, this wind power generator is configured such that, for example, the magnetic leakage member can be brought into contact with or separated from the reinforcing member in response to the rotational speed of the rotating shaft of the rotor, or a magnetic flux that creates a magnetic path gap with respect to the stator. A control ring can be provided, in which case the magnetic leakage member is brought into contact with the reinforcing member when the rotating shaft connected to the engine rotates at a high speed of a predetermined number of revolutions or more, and a closed magnetic circuit is formed between adjacent permanent magnet pieces. The magnetic flux flowing through the stator is reduced by reducing the flow of magnetic force to the stator side to a predetermined constant voltage and moving the magnetic flux control ring in response to the rotational speed of the rotor to increase or decrease the gap with the stator. For example, when the engine rotates at a high speed and the rotor rotates at a high speed, the magnetic leakage member is brought into contact with the reinforcing member to rotate the rotating shaft around. The reduction of the load Te, improve durability, can always be generating the predetermined constant voltage.

  Embodiments of a wind turbine and a wind power generator according to the present invention will be described below with reference to the drawings. As shown in FIGS. 1 and 2, the wind turbine 51 according to the present invention includes a main shaft 56 standing vertically, a plurality of support rods 54 provided on the outer periphery of the main shaft 56, and tips of the support rods 54. A pair of guide passage members 57 and 58 which are attached to a streamlined rotary blade 55 and a main shaft 56 which are fixed to the outer periphery and which form an expanded fixed passage 40 which introduces air from the outside to the outside on the outer peripheral side. And a guide vane 53 that forms a radial fixed blade that introduces air from the outside to the inside between the guide passage members 57 and 58 and on the outer peripheral side of the rotary blade 55. The wind turbine 51 is particularly characterized by the configuration of the guide passage members 57 and 58 and the guide vane 53. The guide passage members 57, 58 form a throttle passage 37 with the outer peripheral expansion surface 49 and the inner peripheral parallel surface 48, and the guide vane 53 expands the outermost periphery outward in the throttle passage 37. That the inner side of the air collecting portion 34, the inner side of the air collecting portion 34 forms a parallel flow, and the diffuser-like flow passage portion 36 whose innermost periphery expands from the parallel flow. It is a feature.

  The guide passage members 57 and 58 extend so as to cover both ends 41 of the rotating blade 55 and both ends of the guide vane 53 constituting the fixed blade, and in particular, the air collecting portion 34 of the guide vane 53. , The rectifying unit 35 and the diffuser-like flow channel unit 36 are attached to the main shaft 56 so as to form a throttle passage 37. The windmill 51 is set by being mounted on a base such as a base or an installation location, for example. In this embodiment, a housing of a permanent magnet generator 50 is installed and fixed on the base. The upper guide passage member 57 and the lower guide passage member 58 may be fixed to the housing of the permanent magnet generator 50 by a support frame or the like, for example, and the output of the permanent magnet generator 50 through the bearing 52. It may be pivotally attached to the upper end 59 side and the lower end 60 side of the rotary shaft 10 that is a shaft. A main shaft 56 of a wind turbine 51 is integrally connected to the rotary shaft 10. Guide vanes 53 are fixedly attached to the guide passage members 57 and 58 by appropriate means. The guide vanes 53 are streamlined vertical fixed blades extending radially from the outer periphery of the rotating blades 55 to the outside of the guide. It is configured.

  The pair of guide passage members 57, 58 form a kind of guide fixed blade with respect to the rotor blade 55, and have a trumpet shape, that is, an expanded shape from the circumference of the rotation locus RT of the rotor blade 55 toward the outside. They are arranged to face each other so as to form a throttle passage 37 for the wind that spreads and flows along the guide surface 49 having a trumpet cross section. The fixed vanes of the guide vane 53 attached to the guide passage members 57 and 58 by an appropriate means gradually expand the opening of the air collecting portion 34 radially from the inner side toward the outer periphery, and the shape of the fixed vanes is an acute angle on the outermost peripheral side. The tip portion 46 has a circular cross section on the innermost circumferential side, and both outer surfaces connecting the outermost circumferential side and the innermost circumferential side have a circular streamline shape. Accordingly, the wind that flows into the wind turbine 51 flows up through the air collecting portion 34 of the guide vane 53 to increase the wind speed, and the wind force strongly collides with the rotor blades 55, causing the rotor blades 55 to rotate strongly. Thus, when the windmill 51 is fixed to the rotating shaft 10 of the permanent magnet generator 50, the power generation efficiency of the permanent magnet generator 50 can be significantly increased. In addition, the guide vanes 53 are arranged in parallel with each other so as to form a rectifying portion 35 of a parallel passage with respect to the wind that flows in after the air collecting portion 34 in the region of the rotation locus RT of the rotor blade 55. It is installed. Further, the guide vane 53 has a shape in which the opening gradually expands radially upward and downward from the inner side to the outer periphery corresponding to the shape of the guide surfaces 48 and 49 of the guide passage members 57 and 58.

  In the guide vane 53, the air collecting portion 34 of the air inflow passage is opened to the outside. The guide vane 53 is installed in a throttle passage 37 whose upper and lower portions are gradually narrowed in the inner diameter direction along the expanded surface 49 of the wall surface of the guide passage members 57 and 58. The guide vane 53 includes an airflow collecting portion 34 whose outermost periphery is expanded outward in the throttle passage 37, a rectifying portion 35 in which the inner side of the airflow collecting portion 34 forms a parallel flow, and a diffuser whose innermost periphery is expanded from the parallel flow. The channel portion 36 is formed and gradually expands radially outward, and is formed into a streamlined shape having an acute outer periphery and a circular outer periphery. Next, the air flow collides with the rotating blades 55 to rotate the rotating blades 55, and then flows along the parallel surfaces 48 of the wall surfaces of the guide passage members 57 and 58 and is discharged to the outside of the wind turbine 51. Accordingly, the wind that has flowed into the windmill 51 is first gradually throttled in the inner diameter direction along the air collecting portion 34 between the expanded surfaces 49 to increase the wind speed, and then rectified by the rectifying portion 35. The flow proceeds in parallel flow, and further, the wind speed increases as the inward diameter of the diffuser-shaped flow path portion 36 is reduced. The air acts on the rotary blade 55 to rotate the rotary blade 55. The guide vane 53 is attached by being slightly twisted so that the streamline vector is along the rotation direction of the rotor blade 55. Further, the guide vane 53 fixes the midpoint of the outer opening with respect to the center line connecting the axis of the rotor blade 55 to the midpoint of the outer opening, and moves toward the rotation direction of the rotor blade 55. It is formed in a passage twisted at an angle of 5 to 30 degrees. When the guide vane 53 is twisted at an angle of 5 degrees or less in the direction of rotation of the wind turbine 51, the streamline vector effect due to twisting is less than that of the untwisted passage, and the guide vane 53 is tilted diagonally. When the twisting angle is 30 degrees or more, the amount of air blown into the air collecting portion 34 of the inflow passage is reduced, and the effect of the streamline vector due to twisting is reduced. Accordingly, the wind blown into the windmill 51 flows smoothly into the windmill 51 to increase the wind speed, and acts favorably on the rotor blades 55 to increase the rotation speed.

  Next, a wind power generator according to the present invention will be described with reference to FIGS. This wind power generator is configured, for example, by incorporating a windmill 51 into a permanent magnet generator 50. The wind power generator electric machine is a permanent magnet generator 50 having a rotor 2 fixed to a rotary shaft 10 connected to a main shaft 56 and a stator 1 fixed to a housing 4 and having a winding 13 wound around a comb portion 15. In addition, a windmill 51 that rotates by wind power and includes a main shaft 56 attached to the rotary shaft 10 of the permanent magnet generator 50 is provided. That is, in this wind power generator, the main shaft 56 is connected to the rotary shaft 10 of the permanent magnet generator 50 and the wind turbine 51 is attached, and the rotation of the main shaft 56 by the wind force is driven by rotating the rotor 2 through the rotary shaft 10 to generate power. . The permanent magnet generator 50 includes a rotating shaft 10 that is rotatably supported by a housing 4 and a housing 4 that house the rotor 2 and the stator 1 via a pair of bearings 11, and a permanent magnet fixed to the rotating shaft 10. A rotor 2 having a magnet member 20 and a stator 1 spaced from the outer periphery of the rotor 2 and fixed to the housing 4 are provided. The stator 1 includes a stator core 12 and a coil 13 wound around a slot 14 between comb portions 15 of the stator core 12. The rotor 2 includes a permanent magnet member 20 having a plurality of permanent magnet pieces 25 that are spaced apart in the circumferential direction.

  The permanent magnet generator 50 includes a magnetic flux control ring 3 that is disposed in a gap 39 between the stator 1 and the rotor 2 and that can rotate relative to the stator 1, and the magnetic flux control ring 3 is driven to the rotor 2. And an actuator 21 that moves relative to the stator 1 in accordance with the above, and is configured to generate a constant voltage by suppressing the magnetic flux to the stator 1 by the function of the magnetic flux control ring 3. The stator core 12 includes, for example, a comb-shaped cylindrical member 43 that constitutes an inner stator core formed of laminated thin plates and the like, and a ring-shaped joint that constitutes an outer stator core that is fitted and fixed to the outer periphery of the comb portion 15 of the comb-shaped cylindrical member 43. It is comprised from the iron member 42. FIG. The comb-shaped cylindrical member 43 is a bridge portion extending in the circumferential direction so as to connect the comb portions 15 located in the circumferentially spaced state in the outer circumferential portion, the slots 14 formed between the comb portions 15, and the adjacent comb portions 15. 16 and a comb-shaped tip 30 that is spaced apart by forming a recess 33 in the circumferential direction extending inwardly from the bridge portion 16. The rotor 2 is, for example, a yoke 19 disposed on the outer periphery of the rotary shaft 10, a permanent magnet member 20 disposed on the outer peripheral surface of the yoke 19, and a kind of fixed to the outer peripheral surface of the permanent magnet member 20. A reinforcing member 5 which is a holding pipe is provided. The permanent magnet member 20 is composed of a permanent magnet piece 25 that is spaced apart in the circumferential direction and extends in the axial direction, and a nonmagnetic material 26 that is interposed between adjacent permanent magnet pieces 25. The permanent magnet pieces 25 constituting the permanent magnet member 20 are arranged so that the permanent magnet pieces 25 adjacent in the circumferential direction are alternately arranged with different magnetic poles, that is, N poles and S poles.

  The magnetic flux control ring 3 is rotatably supported by the housing 4 via an insulating bearing 17 made of, for example, an insulating material, is rotatably supported with respect to the stator 1, and rotates relative to the stator 1 to generate magnetic flux. Control. The magnetic flux control ring 3 is provided with protruding tooth portions 28 that are spaced apart from each other in the circumferential direction and are connected by a bridge portion 27 and face the comb portion 15 of the stator 1. A chamfer 31 is formed at a corner of the tooth portion 28. A gap smaller than the gap between the chamfers 31 is provided between the bottoms of the concave portions 29 of the tooth portions 28. In addition, the permanent magnet generator 50 includes a gap between the chamfer 32 of the tip 30 and the chamfer 31 of the teeth 28 of the magnetic flux control ring 3 in the stator 1, and the bottom 30 of the tips 30 and teeth 28 of the stator 1. And the gap between the tip of the tooth portion 28 of the magnetic flux control ring 3 and the bridge portion 16 of the stator 1 form a magnetic path gap. The permanent magnet generator 50 controls the magnetic flux passing through the stator 1 by moving the magnetic flux control ring 3 in response to the rotational speed of the rotary shaft 10 to increase / decrease the gap with the stator 1, and to determine a predetermined predetermined value. A constant voltage is generated.

  In addition, the permanent magnet generator 50 is provided in contact with the outer peripheral surface of the permanent magnet member 20 of the rotor 2 and is in contact with and separated from the reinforcing member 5 made of a magnetic material that also serves as reinforcement of the rotor 2 and the end 44 of the reinforcing member 5. The magnetic leakage ring 6 made of a magnetic material that can be arranged, and contact / separation driving means for contacting and separating the magnetic leakage ring 6 with respect to the reinforcing member 5 in response to a predetermined rotational speed of the rotor 2 are configured. When the wind power is small or too large, the magnetic force of the permanent magnet member 20 can be leaked through the magnetic leakage ring 6 to prevent cogging or runaway. The reinforcing member 5 includes a circumferentially spaced arc-shaped magnetic plate 22 disposed in contact with the outer periphery of the permanent magnet piece 25 and an intervening disposed in contact with a boundary portion between adjacent permanent magnet pieces 25. The nonmagnetic material 23 is alternately arranged and joined in the circumferential direction. For example, as shown in FIGS. 3 and 4, the contact / separation driving means includes a support ring 24 fixed to the housing 4, a moving ring 8 made of a nonmagnetic material slidably attached to the support ring 24, magnetic leakage A moving bearing 9 for rotatably supporting the ring 6 on the moving ring 8 and a moving means for sliding the moving ring 8 with respect to the supporting ring 24 are provided. The moving means is formed by, for example, a motor having a moving screw 7 screwed into a helical screw 45 formed by a large lead on the moving ring 8.

  The permanent magnet generator 50 is configured so that the magnetic leakage ring 6 is brought into contact with the reinforcing member 5 from the permanent magnet piece 25 of the permanent magnet member 20 until the rotating shaft 10 reaches the predetermined rotation speed from the start of rotation, that is, from the start. Is passed through the magnetic plate 22 of the reinforcing member 5 to the magnetic leakage ring 6, and then passed from the other magnetic plate 22 to the other permanent magnet piece 25 to leak the magnetic force, thereby generating the attractive force of the permanent magnet piece 25. Without causing the rotor 2 to rotate smoothly, the cogging of the rotor 2 at the start-up is prevented. For example, if the wind force is a slight wind, the permanent magnet generator 50 cannot start over the starting torque. However, by leaking the attracting force of the permanent magnet piece 25, the attracting force of the permanent magnet piece 25 is reduced and the wind force is reduced. Even so, the rotor 2 can be smoothly rotated. When the rotational speed of the rotary shaft 10 increases, the starting torque of the rotor 2 is exceeded. At that time, the magnetic leakage ring 6 is pulled away from the reinforcing member 5 and the magnetic force of the permanent magnet piece 25 is passed to the stator 1 side to generate power. Can do. Further, in the permanent magnet generator 50, for example, when the wind force is strong, the rotor 2 rotates at a high speed and runs away, rises above a predetermined constant voltage, and cannot be controlled to a constant voltage. Sometimes, the magnetic leakage ring 6 is brought into contact with the reinforcing member 5, the magnetic force from the permanent magnet piece 25 is leaked as described above, the power generation function is stopped, and the rotational speed of the rotary shaft 10 is reduced. Is separated from the reinforcing member 5 to cooperate with the magnetic flux control ring 3 to perform voltage control.

  Further, the permanent magnet generator 50 controls the amount of air gap between the magnetic flux control ring 3 and the stator 1 by rotating the magnetic flux control ring 3 with respect to the stator 1 to obtain a predetermined constant generated voltage. It can be controlled to obtain. The actuator for rotationally driving the magnetic flux control ring 3 is constituted by a solenoid valve or a motor 21 as shown. For example, in the case of the motor 21, the magnetic flux control ring is connected to the output shaft of the motor 21 via the transmission gear 18. The magnetic flux control ring 3 can be swung with respect to the stator 1 by swinging the swing lever 47 provided at one end of the stator 3. As shown in FIGS. 5 and 6, the permanent magnet generator 50 has a function of the magnetic leakage ring 6 and, in addition to the function of the magnetic leakage ring 6, the movement of the magnetic flux control ring 3 with respect to the stator 1 The gap formed between the front end portion 30 is increased and decreased, and the magnetic flux flowing through the stator 1 is controlled. When the tip 30 of the stator 1 is positioned so as to align with the teeth 28 of the magnetic flux control ring 3, the permanent magnet generator 50 does not suppress the magnetic flux toward the stator 1, and the rotor 2 A predetermined constant voltage determined in advance by the rotation of the power is generated. As shown in FIG. 7, when the magnetic flux control ring 3 swings and moves with respect to the stator 1, and the tooth portion 28 of the magnetic flux control ring 3 moves so as to be positioned in the recess 33 between the front end portions 30 of the stator 1, At a position where the tooth portion 28 corresponds to the slot 14 of the stator 1, a predetermined amount of clearance, that is, a magnetic path gap, is formed between the chamfers 31 and 32, and the magnetic flux toward the stator 1 side is suppressed. Become. When the rotational movement is controlled by the magnetic flux control ring 3 and the actuator, the clearance on the upstream and downstream sides of the moving direction of the magnetic flux control ring 3 and the other clearance are set to be controlled to the same clearance amount. . The outer peripheral surface of the magnetic flux control ring 3 is slidable in close contact with the inner peripheral surface of the comb portion 15 of the stator 1 and is disposed so as to be rotatable relative to the stator 1. The magnetic flux control ring 3 is attached to the stator 1 by an actuator. On the other hand, the position of the magnetic flux control ring 3 relative to the stator 1 is changed relatively slightly to change the magnetic flux passing through the comb portion 15 of the stator 1 to control the generated power.

  The wind power generator according to the present invention can be used, for example, for personal use, industrial use, etc., and the generated power is consumed as general power consumption for driving various devices, lights, lighting, etc., or in electronic equipment, auxiliary equipment, etc. Applicable to.

It is sectional drawing which shows one Example of the wind power generator by this invention. It is AA sectional drawing which shows the wind power generator of FIG. FIG. 1 shows a permanent magnet generator / motor incorporated in the wind power generator of FIG. 1, in which a magnetic leakage ring is brought into contact with a reinforcing member to cause a magnetic force to flow to the magnetic leakage ring, for example, a state where a rotor is smoothly rotated even in a slight wind It is sectional drawing of an axial direction. FIG. 4 is an axial cross-sectional view showing a state in which a predetermined voltage is generated by separating a magnetic leakage ring from a reinforcing member and causing a magnetic force to flow toward a stator in the permanent magnet generator of FIG. 3. FIG. 3 is a cross-sectional view in the axial direction showing a state where the BB cross section in the permanent magnet generator of FIG. 3 is removed with the housing removed, and the magnetic comb is not suppressed by matching the comb portion of the stator with the teeth of the magnetic flux control ring. FIG. FIG. 3 shows the CC cross section of the permanent magnet generator of FIG. 3 with the housing, moving bearing, moving ring and supporting member removed, and the stator comb portion and the teeth of the magnetic flux control ring are made to correspond to suppress the magnetic flux. It is sectional drawing of the axial direction which shows the state which is not. FIG. 3 shows the CC cross section of the permanent magnet generator of FIG. 3 with the housing, moving bearing, moving ring, and support member removed, forming a gap between the stator comb portion and the magnetic flux control ring tooth portion, It is sectional drawing of the axial direction which shows the state which is suppressing the magnetic flux.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Stator 2 Rotor 3 Magnetic flux control ring 4 Housing 5 Reinforcement member 6 Magnetic leak ring 7 Moving screw (contact / separation drive means)
8 Moving ring (contact / separation drive means)
DESCRIPTION OF SYMBOLS 10 Rotating shaft 13 Winding 14 Slot 15 Comb part 20 Permanent magnet member 21 Actuator 34 Air collection part 35 Rectification part 36 Diffuser-shaped flow path part 37 Restriction passage 41 End part 46 Tip part 51 Windmill 53 Guide vane 54 Support rod 55 Rotor blade 56 Main shaft 57, 58 Guide passage member

Claims (8)

A vertically standing main shaft, a plurality of support rods spaced apart on the outer periphery of the main shaft, a streamlined rotating blade extending on a circumference fixed to the tip of each of the support rods, A pair of guide passage members that are attached to the main shaft and that form an expanding fixed passage for introducing air from the outside to the inside on the outer peripheral side, and between the guide passage members and from the outer side to the inner side on the outer peripheral side of the rotor blade A guide vane that forms a radial fixed vane for introducing air, and the guide vane has an airflow collecting portion whose outermost periphery is widened outward, a rectifying portion in which the inside of the air collecting portion forms a parallel flow, And a wind turbine characterized in that a diffuser-shaped flow path portion whose innermost periphery expands from the parallel flow is formed. The guide passage member extends so as to cover both end sides of the rotor blade and the guide vane, and with respect to the air introduced into the air collecting part, the rectifying part, and the diffuser-like channel part of the guide vane. The wind turbine according to claim 1, wherein a throttle passage is formed. The fixed vane of the guide vane is formed in a streamlined shape in which the opening of the air collecting portion gradually expands radially from the inner side toward the outer side, and the outermost periphery of the guide vane has an acute angle and a circular outer periphery. The windmill according to claim 1, wherein the windmill is provided. The wind turbine according to any one of claims 1 to 3, wherein the guide vane is attached by being slightly twisted so that a streamline vector is along a rotation direction of the rotor blade. In the guide vane, the streamline is located at the midpoint of the outer opening with respect to the center line connecting the axis of the rotor blade to the midpoint of the outer opening, and is inclined at 5 to 30 degrees with respect to the rotation direction. The wind turbine according to claim 4, wherein a twisted passage is formed. In a generator comprising a rotating shaft rotatably supported by a housing, a rotor fixed to the rotating shaft, and a stator fixed to the housing and having a winding wound around a comb portion,
The wind turbine according to any one of claims 1 to 5, wherein the wind turbine is attached by connecting the main shaft of the wind turbine to the rotating shaft. The rotor is provided with permanent magnet members spaced apart in the circumferential direction, and is attached to the housing so as to be movable with respect to the stator, and controls the magnetic flux passing through the stator by increasing or decreasing the magnetic path gap. The wind power generator according to claim 6, wherein a magnetic flux control ring is provided. Responding to a reinforcing member capable of forming a magnetic path attached to the outer periphery of the permanent magnet member, a magnetic leakage ring made of a magnetic material arranged so as to be able to come in contact with and away from the end of the reinforcing member, and a predetermined rotational speed of the rotor The wind power generator according to claim 6, further comprising a contact / separation driving unit that contacts and separates the magnetic leakage ring with respect to the reinforcing member.

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